Improvement in drag-sawing machines



C. R. CLIFFORD & I. S. CORY.

DRAG SAWING MACHINE. 4 No.177,619. Patented Ma 23,1876.

UNITED STATES PATENT OFFICE.

GASSIUS R. CLIFFORD AND ISAAC S. CORY, OF HENRY COUNTY, INDIANA.

IMPROVEMENT IN DRAG-SAWI-NG MACHINES.

Specification forming part of Letters Patent No. 177,619, dated May 23,1876; application filed November 1, 1875. I

To all whom "it may concern:

Be it known that we, OAssIUs R. ULIFFORD and ISAAC S. CORY, of Henry county, State of Indiana, have invented a new and useful Improvement in Drag-Sawing Machines, of which the following is a specification, relerence being had to the accompanying drawings.

Our invention consists of an arrangement of mechanism attached to a wheelbarrow,

whereby we operate a drag-saw with a motion similar to that which would beiobtained by two men with a crosscut-saw, and at the same time the machine is portable and easily operated, and readily adjusted to a level when on uneven ground, and securely held against the log to be sawed.

Figure 1 represents a side elevation of ourimproved port-able hand drag-saw. Fig. 2 is aplan or top view of the same. Fig. 3 is a View of the end of the machine that is nearest to the log to be sawed.

A A represents the side frames or handles of the wheelbarrow, which is provided with the wheel B in the usual manner. On each side frame A A areV-shaped uprights O G O which are united at the upper part by the cross-bar 0 The upright frames 0 O are provided with suitable boxes d d g g, in which revolve the shafts Y and Z. The shaft Ypr0- jects beyond the frame 0 on one side, and is provided with a crank, S, and has a large spur-wheel, D, keyed near the center of the shaft. This pinion or spur-wheelD meshes in gear with a smaller pinion, E, which iskeyed on the shaft Z, and the balance-wheel G is also keyed onto the end of the shaft Z that projects beyond theupright frame 0, opposite that of the crank S. On the same shaft Z is pivoted at V V the forked lever L, and at the lower extremities of the forks are boxes '10 w,'in which revolve the crank-shaft or, by means of the pinion F, which is keyed there- The crank H is attached to one end of the shaft 00, and is secured or pivoted in boxing to the pitman J. The arrangement of the crank-shaft m at the end of the forked lever L is such as to allow the saw it and pitman J, to be elevated without disconnecting the the pin H 'notch on one side, in which gears E and F, because any movement of the lever L either'up or down moves the crankshaft .r, with the crank H, pinion F, and pitman K, with a circular motion around the periphery of wheel E, and keeps the gears of the pinions always in gear, but elevates or depresses the saw-pitman K to any desired position, and at the same time allow the crank H to be revolved and operate the saw. The saw Kis attached to the pitman J in the usual manner, the pitman working in the guide It, and held at any desired point of elevation by The legs of the wheelbarrow are pointed at the lower end, and pivoted to the side frames A A, and are provided with a fits a pawl, P, shown more fully in Fig. l. The legs 0 can be adjusted so as to level up the machine, or incline it .10 correspond with the log T, and are alsoused to secure the machine against the log by driving them into the ground, when the wheel B is against the log, thus preventing the machine from oscillating while being operated.

What we claim as new, and wish to secure by Letters Patent, is

l. The relative arrangement of the shafts Y, Z, and or, provided with spur-wheels or pinions D, E, and F, in combination with the forked lever L, pivoted to the shaft Z at V V, and operated, as described, to move the saw K, by means of the pitman J, and crank H, substantially as specified and set forth.

2. The forked lever L, arranged as described, and pivoted to the shaft Z, in such a manner as to operate the crankshaft as with a circular movement around the wheel E, substantially as described, and for the purpose specified.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

S. O. FRINK, H. B. MEARS. 

